Lubricator.



No. 786,357. PATENTED APR. 4, 1905.

J. HANSON.

LUBRIGATOR.

APPLICATION FILED 001 .24, 1904.

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Witnesses Inventor.

gyazg 1 m Httomegs Patented April 4, 1905.

PATENT OFFICE.

JOSEPH HANSON, OF INWOOD, IOWA.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent N 0. 786,357, dated April4, 1905.

Application filed October 24.1904- Serial No. 229,731-

To all whmn it nmy concern..-

Be it known that I, JosErH HANsoN, a citizen of the United States,residing at Inwood, in the county of Lyon and State of Iowa, haveinvented a new and useful Lubricator, of which the following is aspecification.

This invention relates to lubricators, and has for its object to providean improved forcefeed lubricator, the feed mechanism of which isarranged for intermittent operation by some moving part of the machineto which the device is applied.

It is furthermore designed to provide for automatically tripping thefeed mechanism when the lubricant has become exhausted, thereby toprevent damage by further advancement of the plunger which is employedto force the feed of the lubricant.

With these and other objects in View the present invention consists inthe combination and arrangement of parts, as will be hereinafter morefully described, shown in the ac companyingdrawings, and particularlypointed out in the appended claims, it being understood that changes inthe form, proportion, size, and minor details may be made within thescope of the claims without departing from the spirit or sacrificing anyof the advantages of the invention.

In the accompanying drawings, Figure 1 is a longitudinal sectional viewof a force-feed lubricator embodying the features of the presentinvention. Fig. 2 is an end view with parts broken away to illustratethe mounting of the drive-shaft of the device. Fig. 3 is a detail viewillustrating the ratchet device included in the feed mechanism.

Like characters of reference indicate corresponding parts in each andevery figure of the drawings.

The present device includes a cylindrical body 1 to contain thelubricant and supported at opposite ends upon suitable standards 2 and3. At the top of the front of the cylinder there is a filling-passage4:, provided with a turning plug or stop-cock 5 and surmounted at itstop by a funnel 6, whereby the lubricant may be conveniently introducedinto the cylinder. The front head 7 of the cylinder is pierced by anozzle 8, which is reduced at its outer end to form a coupling 9 forconnection with a service-pipe to carry the lubricant from thelubricator to the different parts of the machine.

W'ithin the cylindrical body 1 there is a plunger comprising a tubularcore 10, which has its forward end closed and working in the nozzle 8 asa guideway, the rear end of the core being open and threaded bothinternally and externally. The body 11 of the plunger is substantiallycylindrical in shape and of less diameter than the. body 1, with itsforward portion connected to the middle of the core 10 by an integralwall or web 12, which is projected beyond the body 1]. to form a rim orflange 13, the rear side of which is beveled, as at 14. A cylindricalgland 15 embraces the rear open side of the plunger and is provided atits rear end with an end wall or web 16,,having a central opening 17 toloosely lit the rear end of the core, there being suitable packing 18surrounding the body of the plunger and braced between the flange 13 andthe gland 15. In rear of the gland there is a nut 19, fitted to theexternallythreaded portion of the core and bearing against the gland forthe purpose of adjusting the same and taking up wear on the packing 18.

The rear end of the cylinder-body l is pierced by a rotatable stem 20,having its forward threaded portion 21 engaging theinteri- Orly-threadedportion of the core 10, while its rear threaded portion 22 receives ahandwheel 23, there being a gear 24 carried by the stein and locatedbetween the hand-wheel 23 and the body of the lubricator.

A drive-shaft 25 is supported transversely across the rear end of thelubricator beneath the gear 24, with one end mounted in a flared bearing26 and its opposite end mounted in a bearing 27, which is pivoted at itsrear end, as at 28, upon the adjacent standard. Upon this drive-shaft isa worm 29, which meshes with the gear 24. One end of the shaft 25 isprovided with a ratchet-wheel 30, which is operated by means of a pairofdogs 31, mounted upon a cross-head 32, which is carried by a vibratinglever 33, fulcrumed intermediate of its ends upon the ad acent end ofthe shaft 25. Laterally-directed perforate cars 34 and 35 are carried bythe lever 33 at opposite sides of its fulcrum, and an endwisc-adjustablerod 36 extends through these perforate ears and has its upperendpivotally engaged with a connecting-rod 37, connected to some movablepart of the machine to which the lubricator is applied, so as to imparta vibrating movement to the lever 33. A stop-collar 38 embraces the rod36 above the upper car 34 and is provided with a set-screw 39 forengagement with the rod, whereby the latter may be adjustabl y elevatedto vary the throw of the lever. \Vhen the lever 33 is in motion, theshaft 25 and the worm 29 are intermittently rotated, therebyintermittently rotating the gear 24 and the stem 21, which latteroperates to move the plunger forward and force the lubricant outwardthrough the nozzle 8.

The front end of the cylinder 1 is pierced by an endwise-shiftabletrip-pin 40, which works through a stuffing-box 41 and has its rear endin the forward path of the plunger for contact therewith. In front ofthe trippin there is a lever 42, fulcrumed upon a bracket 43, carried bythe cylinder, with its opposite end pivotally connected to a rod 44,working beneath the cylinder through guides 45 and 46, carried by thestandards 2 and 3. Upon the rear end of the rod 44 is a platespring 47,which bears against the under side of the bearing 27 to maintain theworm 29 in engagement with the gear 24. \Vhen the plunger engages thetrip-pin 40 and forces the same forwardly into engagement with the lever42, the rear end of the rod 44 will be dfawn from beneath the pivotalbearing 27, whereby the bearing will drop and withdraw the worm 29 fromthe gear 24, thus stopping the forward feed of the plunger.

After the lubricant has become exhausted the hand-wheel 23 ismanipulated to withdraw the plunger into the back of the cylindricalbody, and the body is recharged by pouring the lubricant into the funnel6, and then the bearing 27 is reset and the device is in condition foroperation.

Having fully described the invention, what is claimed is-- 1. In aforce-feed lubricator, the combination of a body, a plunger workingtherein, a drive-shaft, gearing between the shaft and the plunger, apivotal bearing for one end of the shaft, a movable member supportingthe pivotal bearing and capable of being withdrawn therefrom to permitdropping of the bearing and the shaft, a movable trip in the path of theplunger, and means actuated by the trip to withdraw the bearingsupporting member from the bearing.

2. In a force-feed lubricator, the combination of a body, a plungerworking therein, means for actuating the plunger including adrive-shaft, a movable bearing for the shaft, a movable trip memberlocated in the path of the plunger, a lever located in the path of thetrip member, and a rod connected to the lever and having a portion lyingbeneath and supporting the movable bearing and capable of beingwithdrawn therefrom under the action of the lever to drop the bearing.

3. In a lubricator,the combination of a body, a plunger working thereinand having an internally and externally threaded tubular core projectedtherefrom, a gland telescoping upon the plunger, packing between thegland and the plunger, a nut engaging the externallythreaded portion ofthe core for the adjustment of the gland, and a feed-screw piercing thebody and engaging the internally-threaded portion of the core.

4. In a lubricator. the combination of abod y having a discharge-nozzleat its forward end, a plunger working in the body and provided with atubular core having its forward end closed and working in the nozzle asa guide, the rear end of the core being open and threaded internally, arotatable stem piercing the rear end of the body and having a threadedportion engaging the threaded interior of the core, a gear upon theouter end of the stem, a driveshaft, a gear carried by the shaft andmeshing with the gear upon the stem, a pivotal bearing for one end ofthe shaft, a slidable member engaging the body to maintain the gearsmeshed and capable of being withdrawn from the bearing to drop theshaft, an endwise-movable trip-pin piercing the front of the body in thepath of the plunger, and a lever located in the path of the outer end ofthe trip-pin and connected to the shiftable member to withdraw the samefrom the bearing.

In testimony that I claim the foregoing as my own I have hereto aflixedmy signature in the presence of two witnesses.

JOSEPH HANSON.

IV itn esses:

LOUIS ANDERSON, E. RENsHAw.

